2011年北京卷高考題 幾道單選題求解析!謝謝、21．Experiments of this kind in both.
21．Experiments of this kind in both the U.S.and Europe well before the Second World War.
A．have conducted \x09B．have been conducted
C．had conducted \x09D．had been conducted
為什么用“had”而不用“have” 僅僅是因為是過去的事情么?
為什么有“been”?
22． Barbara Jones offers to her fans is honesty and happiness.
A．Which \x09B．What \x09C．That \x09D．Whom
為什么要用“what”,
30．Maybe if I science,and not literature then,I would be able to give you more help.
A．studied \x09B．would study\x09C．had studied \x09D．was studying
這不是主將從現(xiàn)么?那又是什么?為什么不選B?
34．The employment rate has continued to rise in big cities thanks to the efforts of the local governments to increase .
A．them\x09B．those \x09 C．it \x09D．that
徹底沒懂、句意?指代?
以上幾道高考題,3q